In some small-scale societies, a sexual division of labor is common. For subadult hunter-gatherers, the onset of this division dates to middle childhood and the start of puberty; however, there is apparently no physiological explanation for this timing. The present study uses an experimental approach to evaluate possible energetic differences by sex in gathering-related activities. The energetic cost of gathering-related activities was measured in a sample of 42 subjects of both sexes aged between 8 and 14 years. Body mass and (...) other anthropometric variables were also recorded. Our results show that the energetic differences in the simulated gathering activities depend only on body mass. Both sexes expend a similar amount of energy during locomotion activities related to gathering. Discarding the energetic factor, the sexual division of tasks may be explained as an adaptation to acquire the skills needed to undertake the complex activities required during adulthood as early as possible. Carrying out gathering activities during childhood and adolescence could be favored by the growth and development cycles of Homo sapiens. Moreover, if most of the energetic costs of gathering activities depend on body mass, the delayed growth in humans relative to other primates allows subadults to practice these tasks for longer periods, and to become better at performing them. In fact, this strategy could enable them to acquire adults’ complex skills at a low energetic cost that can be easily subsidized by other members of the group. (shrink)

Extractive foraging tasks, such as digging, are broadly practiced among hunter-gatherer populations in different ecological conditions. Despite tuber-gathering tasks being widely practiced by children and adolescents, little research has focused on the physical traits associated with digging ability. Here, we assess how age and energetic expenditure affect the performance of this extractive task. Using an experimental approach, the energetic cost of digging to extract simulated tubers is evaluated in a sample of 40 urban children and adolescents of both sexes to (...) measure the intensity of the physical effort and the influence of several anatomical variables. Digging is a moderately vigorous activity for inexperienced girls and boys from 8 to 14 years old, and it requires significant physical effort depending on strength and body size. However, extracting subterranean resources is a task that may be performed effectively without previous training. Sex-specific and age-specific differences in the net energy expenditure of digging were detected, even though both sexes exhibited similar proficiency levels when performing the task. Our results highlight that both boys and girls spend considerable energy while digging, with differences largely driven by body size and age. Other factors beyond ability and experience, such as strength and body size, may influence the proficiency of juveniles in performing certain physically intensive foraging tasks, such as gathering tubers. (shrink)

Durante la redacción de la reseña de este libro llegó la triste noticia de la muerte de su autor, Juan Trías Vejarano. Profesor entrañable que deja un afectuoso recuerdo, mantuvo hasta el final su gran inquietud intelectual y su labor investigadora. Muestra de ello es este libro, que el autor concibió como una última aportación, y que tuvo la satisfacción de ver culminada y publicada. No pudo sin embargo acudir a su presentación, que se convirtió en su ausencia en un (...) sentido homenaje. (shrink)

En un Estado como el español en el que conviven distintas identidades nacionales las diferentes ideas y discursos que han existido con relación a la nación española han dado lugar a diferentes actitudes hacia la pluralidad etnocultural y nacional existente, así como a decisiones políticas dispares con relación a educación, cultura, políticas lingüísticas, etc. Este estudio analiza la presencia a lo largo del tiempo de tres concepciones fundamentales en este sentido: la visión étnica tradicional de la nación, claramente obsoleta, y (...) los más relevantes patriotismo constitucional y patriotismo de la pluralidad. El concepto de patriotismo de agregación que aquí se presenta, y su discurso correspondiente, aspiran a trascender lo que se consideran limitaciones de las concepciones señaladas. Este modelo apela a una cultura común de referencia como fundamento de identificación con la nación española, al tiempo que no resulta excluyente sino compatible con otras identidades etno-nacionales dentro del Estado. (shrink)

Vocational Education and Training policies are paying increasing attention towards the need to develop quality career guidance processes. Career guidance plays an essential role in this challenge by enabling people to develop the career management skills that allow them to become aware of their full potential and to construct life projects that facilitate the emotional management of uncertainty and complexity, participating as responsible agents in their environment. After conducting a literature review on each of these key elements, we set out (...) to identify best practices in VET as “building blocks” for the construction of an integrated career guidance plan in VET. This study adopts an approach based on qualitative methodology, specifically a documentary type of research has been carried out. The documents analysed correspond to 88 best practices identified in Andalusia. The analysis strategy used was a content analysis. For this purpose, a system of categories has been designed, from a deductive perspective, which has contributed to a systematic analysis of them. One of the first conclusions of the study is the uneven development o best practices in the different VET professional pathways. The practices carried out in the centres begin to incorporate different elements and thus facilitate the creation of a suitable context for the development of comprehensive career guidance plans in VET. The article closes by offering implications for the development of guidance in the education system and discusses lines of future research. (shrink)

Participation in research is supposed to be voluntary and informed. Yet it is difficult to ensure people are adequately informed about the potential uses of their biological materials when they donate samples for future research. We propose a novel consent framework which we call “demonstrated consent” that leverages blockchain technology and generative AI to address this problem. In a demonstrated consent model, each donated sample is associated with a unique non-fungible token (NFT) on a blockchain, which records in its metadata (...) information about the planned and past uses of the sample in research, and is updated with each use of the sample. This information is accessible to a large language model (LLM) customized to present this information in an understandable and interactive manner. Thus, our model uses blockchain and generative AI technologies to track, make available, and explain information regarding planned and past uses of donated samples. (shrink)

Nuestro objetivo consiste en caracterizar la ontología corporal de las mujeres indígenas mapuce desde el esquema epistemológico sujeto-sujeto, propio de las teorías decoloniales. En este aspecto, nos interesa desnaturalizar ciertos mecanismos de subalternización, en tanto huellas de la colonialidad, que siguen operando no solo en la construcción de sentidos, sino también como reproductores de la opresión interseccional que experimentan estas mujeres. Preliminarmente, para este planteo, nos enfocaremos en la delimitación del concepto de interseccionalidad. Luego, intentaremos articular, desde un planteo feminista (...) decolonial, diversas narrativas de estas mujeres mapuce, vinculadas a la precarización de sus vidas y su salud, como parte de las violencias instituidas por la cultura hegemónica. Finalmente, nos resulta fundamental poner de relieve la resiliencia de las culturas subalternizadas, como forma horizontalizada de narrativizar un sentir decolonial desde la memoria performativa del cuerpo, contra ciertos dispositivos de subalternización, a partir de la clara referencia a las luchas y re-existencias de las mujeres indígenas mapuce, en el marco de una perspectiva situada en la decolonización, la emancipación y la liberación de los pueblos oprimidos. (shrink)

En el presente artículo se abordarán los aportes realizados por Gramsci en la construcción de la figura del intelectual. Para ello, se caracterizarán los rasgos distintivos del determinismo histórico marxista, para luego enfocarnos en el pensamiento gramsciano. A partir de allí nos centraremos de manera expresa en los argumentos desplegados por Gramsci al procurarle una función activa a la figura del intelectual, en tanto intelectual colectivo que se va conformando encarnado en el partido revolucionario de la clase obrera. De esta (...) manera, plantearemos que esta disposición del intelectual colectivo se enlaza con los problemas de la vida social en la búsqueda de unificar teoría y praxis, y pretende crear así una nueva hegemonía, puesto que admite la indeterminabilidad de la historia según leyes. (shrink)

La obra de Laín Entralgo se fundamenta principalmente en la preocupación por el ser humano, por sus interrogantes, sus necesidades y las respuestas que puede obtener en el transcurso de su vida. La maduración de su pensamiento hacia este tema viene dada de una estructura dinámica del ser humano. Es una crítica a Marcel y Paul Ricoeur, al desconocimiento zubiriano de una teoría filosófica del ser humano como actualización y presencia física de un animal de realidades. Para Laín la realidad (...) humana es la compresión de la realidad del hombre a través de su realidad constitutiva, de su realidad dinámica, de su realidad copartícipe con el cosmos y de su realidad conductual. (shrink)

This chapter is a discussion of Class and Resemblance Nominalism. According to the traditional versions of these theories, properties are classes of particulars. Thus, the property of being red is the class of red particulars, and the property of being square is the class of square particulars. Several objections have been advanced against these theories, and one of the most powerful of such objections is the so-called Coextension Difficulty, according to which Class and Resemblance Nominalism have to wrongly identify distinct (...) but coextensive properties. After discussing the nature of Class and Resemblance Nominalism, some problems of these theories and how they can be deal with, the superiority of Class and Resemblance Nominalism over other theories of properties and the superiority of Resemblance Nominalism over Class Nominalism, I concentrate on the Coextension Difficulty. With respect to this I argue that Class and Resemblance Nominalism can be developed in such a way that they admit properties without identifying them with classes, and this allows them to avoid the Coextension Difficulty, since such versions of these theories are not forced to wrongly identify distinct but coextensive properties. Thus the Coextension Difficulty is not a lethal problem for Class and Resemblance Nominalism. (shrink)

The subtraction argument, originally put forward by Thomas Baldwin (1996), is intended to establish Metaphysical Nihilism, the thesis that there could have been no concrete objects. Some modified versions of the argument have been proposed in order to avoid some difficulties faced by the original argument. In this paper I shall concentrate on two of those versions, the so-called subtraction argument* (presented and defended in Rodriguez-Pereyra 1997, 2000, 2002), and Efird and Stoneham’s recent version of the argument (Efird and Stoneham (...) 2005). I shall defend the subtraction argument* from Alexander Paseau’s (2006) objection that because a crucial premise of the subtraction argument* may have no plausibility independent from Metaphysical Nihilism, the subtraction argument* is not suasive. Although Paseau focuses on the subtraction argument*, I shall point out that Efird and Stoneham could reply to Paseau’s objection in the same way. Thus there are (at least) two suasive versions of the subtraction argument that establish Metaphysical Nihilism. But are those two arguments equally good? I shall argue that the subtraction argument* is preferable to Efird and Stoneham’s argument. (shrink)

Las investigaciones que Carlos Alchourrón desarrolló en la Filosofía del Derecho se vincularon, desde inicios de la década de 1980, con problemáticas críticas de la Inteligencia Artificial. Su contribución a la construcción de una lógica de las normas se conectó rápidamente con la deducción automática y los Sistemas Expertos Jurídicos. Su preocupación por la cuestión de los conflictos de obligaciones que pueden plantearse en un sistema normativo cuando el juez se enfrenta a la necesidad de emitir un veredicto considerando ciertos (...) hechos, se vinculó, en sus trabajos, con la noción más general de "condicionales derrotables" y con la formalización del Razonamiento No Monótono. Pero su contribución de mayor impacto fue aquella derivada de la búsqueda de una solución al problema de los resultados múltiples que surgen de la derogación de una norma en un sistema jurídico, problema que puede ser visto, en un contexto epistémico, como el de la contracción de un conjunto de creencias. Su enfoque constructivo, que desarrolló con David Makinson, convergió con el axiomático elaborado por Peter Gärdenfors, dando lugar al surgimiento de la teoría de los Cambios Racionales de Creencias, más conocida como AGM, teoría que fue adoptada en IA como un modelo standard para la especificación de las actualizaciones de Bases de Conocimiento, operaciones que, habitualmente, involucran la introducción de una nueva creencia que puede ser inconsistente con las anteriores. ¿Por qué AGM adquirió rápidamente carta de ciudadanía en IA, al punto de que su influencia, medida según la cantidad de menciones bibliográficas del artículo fundacional de 1985, se ha duplicado en la última década? Mostraremos en este trabajo que la teoría apareció en un momento de crisis de la IA y que el alto nivel de abstracción del modelo de AGM era lo que muchos investigadores de la disciplina estaban buscando. El presente artículo, luego de describir la génesis de AGM, realiza un análisis histórico de las circunstancias en las cuales la teoría se introdujo en la IA y una evaluación cuantitativa y cualitativa de su impacto en dicha disciplina. The main lines of research that Carlos Alchourrón developed in the Philosophy of Law, were connected, from the beginnings of the 80' s, to some critical problems in the Artificial Intelligence. His contributions to the construction of a logic of norms were rapidly linked to automatic deduction and the Legal Expert Systems. His concerns for the conflict of obligations that could arise in a normative system when a judge has to issue a ruling taking some particular facts into account were associated in his work with the more general notion of "defeasible conditionals" and with the formalization of Non Monotonic Reasoning. But his most relevant contribution was the one derived from the search of a solution to the problem of multiple outcomes resulting from the derogation of a norm in a legal corpus, which may be considered -within an epistemic framework- analogous to the contraction of a set of beliefs. The constructive approach he worked out with David Makinson converged with Peter Gärdenfors' axiomatic, giving rise to the formulation of the theory of Rational Changes of Belief, which was adopted in AI as a model for the specification of the updates of Knowledge Bases as it usually involves a new belief that may be inconsistent with the old ones. (shrink)

Sacrificial dilemmas such as the trolley problem play an important role in experimental philosophy (x-phi). But it is increasingly argued that, since we are not likely to encounter runaway trolleys in our daily life, the usefulness of such thought experiments for understanding moral judgments in more ecologically valid contexts may be limited. However, similar sacrificial dilemmas are experienced in real life by animal research decision makers. As part of their job, they must make decisions about the suffering, and often the (...) death, of many non-human animals. For this reason, a context-specific investigation of so-called “3R dilemmas” (i.e., dilemmas where there is a conflict between the principles of replacement, reduction, and refinement of the use of animals in research) is essential to improve the situation of both non-human animals and human stakeholders. An approach well suited for such investigation is experimental philosophical bioethics (“bioxphi”), which draws on methods similar to x-phi to probe more realistic, practical scenarios with an eye to informing normative debates and ethical policy. In this article, we argue for a need to investigate 3R dilemmas among professional decision-makers using the tools of bioxphi. In a first step, we define 3R dilemmas and discuss previous investigations of professionals’ attitudes in such cases. In a second step, we show how bioxphi is a promising method to investigate the whys and hows of professional decision-making in 3R dilemmas. In a last step, we provide a bioxphi template for 3R dilemmas, give recommendations on its use, explore the normative relevance of data collected by such means, and discuss important limitations. (shrink)

We claim the climate crisis is the proper baseline for establishing the terms of debate about the viability of a post-work future. In this paper, we aim to assess the viability of a post-work future in which automation replaces a significant portion of human labor. We do this by laying out the possible outcomes of what such a future will look like based on three related axes: technological capacity, politics and social distribution, and alternative conceptions of the good. The purpose (...) in tracking these outcomes is to have a clear picture of those outcomes we should be pursuing in contrast to those we ought to avoid. Put another way, to achieve a post-work future that is egalitarian in character will require ensuring that technological capacity is used to improve the prospects for all humanity. The argument proceeds along the following lines. First, we summarize the scientific consensus about the causes and consequences of climate change, as well as the tools of mitigation and adaptation it recommends. The causes are primarily rooted in the global system of production and consumption that has developed over the last century. We refer to this pattern of development as the “Growth Model” since it primarily relies on energy created from burning fossil fuels and the exponential consumption of resources to promote more growth (Rose 2020). Second, we construct a range of possible outcomes regarding the climate crisis that are based on different trajectories of development. We do so by examining each of two cases located on the poles of three different axes. These axes include technology, political organization and social distribution, and conceptions of the good, yielding eight possible outcomes. The point of considering these cases and how they intersect along these axes is two-fold: to clarify the features that define them and compare their merits and drawbacks, enabling us to formulate the means for avoiding some outcomes and strive for others. Third, we then consider the viability of a post-work future in terms of these outcomes. Some of these outcomes point in a direction where automation replaces labor, and its benefits are shared widely. Others indicate a future in which some groups benefit at the expense of others, while some appear to preclude the emergence of such a future altogether. Finally, we conclude with some observations about the viability of a post-work future given our evaluation of these outcomes. (shrink)

En este breve ensayo me interesa analizar el concepto de lenguaje privado desarrollado por Ludwig Wittgenstein. La importancia radica en el desafío que plantea esta noción cuando nos ponemos a pensar sobre las posibilidades reales de un lenguaje puramente privado. En este sentido, el argumento del enfoque wittgensteiniano sostiene que el significado de las palabras no se origina en experiencias subjetivas individuales, sino en la interacción social dentro de una comunidad de hablantes. De modo que, si cada persona tuviera un (...) lenguaje exclusivamente privado, la comunicación sería imposible. Por ello, el objetivo de este escrito se centra en debatir si efectivamente el lenguaje es un fenómeno colectivo, arraigado en prácticas compartidas y acuerdos tácitos, o bien, puede tratarse de una construcción personal subjetiva. En síntesis, para examinar este planteo me centraré en el argumento propuesto por Kripke contra el lenguaje privado, y desde allí, analizaré la paradoja escéptica de Wittgenstein. (shrink)

El análisis del lenguaje prescriptivo y el lenguaje descriptivo es algo de lo que se ha encargado la filosofía analítica. Sus estudios discurren, entre otros, sobre problemas como el que plantea la denominada “falacia naturalista” o “El problema de la guillotina”, donde autores como Hume, y malas interpretaciones sobre lo trabajado por Moore acerca de las propiedades “naturales” y “no- naturales” del lenguaje, han afirmado la imposibilidad de derivar un “Debe” de un “Es”, llegando con ello a la tesis que (...) sostiene que “ningún conjunto de enunciados descriptivos puede entrañar un enunciado evaluativo”. Sin embargo, los estudios del lenguaje de John Searle nos muestra que “el lenguaje, en todas partes, está acribillado de contraejemplos al punto de vista según el cual “no pueden seguirse evaluaciones a partir de descripciones” ya que para hablar de la validez de un argumento, que usa lenguaje descriptivo, es preciso usar términos evaluativos propios del lenguaje prescriptivo, lo cual nos lleva a relacionar lógicamente ambos enunciados. Este análisis del lenguaje nos abre un camino a la exploración en el ámbito de la moral que, si bien es cierto no lo trabaja directamente el autor, sí nos deja una brecha para hacerlo; la solución a este problema nos llevaría, entonces, a pensar en la posibilidad de trabajar los enunciados morales como enunciados válidos racionalmente al relacionarlos con enunciados descriptivos. En este trabajo presentaré los argumentos de Searle para defender cómo se deriva un “Debe” de un “Es”, y en la última parte plantearé cómo esta teoría puede acercarnos a una fundamentación de validez en los enunciados morales. (shrink)

Epistemology had to come to terms with “the social” on two different occasions. The first was represented by the dispute about the epistemological status of the “social” sciences, and in this case the already well established epistemology of the natural sciences seemed to have the right to dictate the conditions for a discipline to be a science. But the social sciences could successfully vindicate the legitimacy of their specific criteria for scientificity. More recently, the impact of social factors on the (...) construction of our knowledge (including scientific knowledge) has reversed, in a certain sense, the old position and promoted social inquiry to the role of a criterion for evaluating the purport of cognitive (including scientific) statements. But this has undermined the traditional characteristics of objectivity and rigor that seem constitutive of science. Moreover, in order to establish the real extent to which social conditionings have an impact on scientific knowledge one must credit sociology with a sound ground of reliability, and this is not possible without a preliminary “epistemological” assessment. These are some of the topics discussed in this book, both theoretically and with reference to concrete cases. (shrink)

Resumen. El siguiente artículo muestra el estado actual de la Responsabilidad Empresarial enMéxico y su efecto en el Riesgo medido a través del Costo de Capital. Para ello, revisamos lasprincipales teorías que muestran que el uso de prácticas sociales en Estados Unidos provocandisminución del riesgo y por ende del Costo de Capital, Aras y Crowther, Richardson yWelker y Diamond y Verrechia. Con el fin de contrastar que las empresas SocialmenteResponsables tienen costos de capital menores consideramos como variable de desempeño social (...) eldistintivo que otorga el Centro Mexicano de Filantropía y por otra parte para calcular elriesgo consideramos el costo de capital a través de la metodología del Capital Asset Price Modelo. Encontramos que las empresas que son socialmente responsables tienen costos de capitalsuperiores que las que no son responsables y que el rendimiento de acciones es superior en lasempresas no responsables, por lo que el diferencial de riesgo vs rendimiento es superior en lasempresas no socialmente responsables. Lo anterior rechaza la hipótesis y contrasta con la realidadempírica de otros estudios.Palabras claves. Distintivo de ESR, CEMEFI, costo de capital, riesgo, rentabilidad de acciones,Bolsa de Valores. The following article shows the current status of the corporate responsibility inMexico and their effect on risk measured by the cost of capital. To do this, we review the maintheories that show that social practices in the United States leads to decrease risk and hence the costof Capital Aras and Crowther, Richardson and Welker and Diamond y Verrechia. In order to contrast that socially responsible companies have lower capital costs we considersocial performance variable the distinction conferred by the Mexican Center for Philanthropy and the cost of capital it estimate on the methodology of the Capital Asset Price model. We find that companies that are socially responsible have capital costs higher than thosethat are not responsible. It rejects the hypothesis and contrasts with the empirical reality of otherstudies.Keywords. CSR distintive, CEMEFI, cost of capital, risk, return in shares, Capital Market Securities. (shrink)

El presente artículo es una reflexión profunda sobre los principales fundamentos del Derecho penal. En concreto, se ocupa de esclarecer los criterios de verdad sobre los que se apoyan las decisiones de los jueces. Ello supone cuestionar las bases filosóficas y científicas más rígidas del mundo jurídico, que postulan su carácter objetivo, y exponerlas a la crítica sociológica y política.The present article is a deep reflection on the principal foundations of the Criminal law. Specially, it is busy with clarifying the (...) criteria of truth on those who rest the decisions of the judges. It supposes questioning the most rigid philosophical and scientific bases of the juridical world, which postulate his objective character, and exposing them to the sociological and political critique. (shrink)

La formación profesional tiene un carácter contextualizado que responde a las exigencias que la época, la sociedad y el país reclaman a las universidades. La Estomatología en Cuba no se encuentra al margen de estos preceptos por lo que desarrolla un plan de estudio que acentúa la flexibilidad para realizar modificaciones necesarias y pertinentes. El estudiante al culminar la carrera debe brindar una atención estomatológica integral donde las anomalías dentomaxilofaciales constituyen la tercera línea de trabajo. Estas ocasionan afectaciones estéticas que (...) repercuten en la autoestima y adaptación social de niños y adolescentes por lo que se necesita de una orientación sicoeducativa, acción para la cual el profesional deberá estar preparado. A partir de las insuficiencias detectadas en el proceso formativo del estomatólogo, el objetivo del presente trabajo es proponer un curso propio sobre la temática para favorecer la graduación de un profesional capaz de resolver los problemas que afectan el complejo estomatognático con un enfoque biosicosocial. Los métodos empleados fueron el histórico-lógico y análisis-síntesis. Professional training has a contextualized nature which reflects the demands that the time, society and the country require from universities. In Cuba, Stomatology is not out of these precepts and therefore it carries out a syllabus that emphasizes flexibility to make necessary and appropriate changes. When students graduate, they must provide a complete stomatological care where dental maxillofacial anomalies are the third line of work. They cause aesthetic harm that affects children and teenagers' self-esteem and social adaptation which makes psych educational guidance necessary; a situation professional must be prepared for. Starting from the weak points discovered in the training process of stomatologists, a crash course in the subject is suggested in order to favor the graduation of professionals who are able to solve problems that affect the stomatognatic complex with a biopsychosocial approach, through the use of required methods, techniques and procedures. (shrink)